Storage card for supplying multiple voltage and supply for internal storage controlled chip and voltage
A control chip and memory control technology, applied in data processing power supplies, record carriers used in machines, measuring devices, etc., can solve the problems of increased cost of control chips, large area of voltage regulators, and increased design area of voltage regulators.
Active Publication Date: 2009-09-02
VIA TECH INC
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- Application Information
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Problems solved by technology
In terms of the concept of the high-voltage manufacturing process, if the instantaneous maximum current provided is larger, the insulating layer required is larger, resulting in a larger area of the voltage regulator
Therefore, the design area of the voltage regulator will increase significantly, which will increase the cost of the control chip itself.
Method used
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Embodiment Construction
[0023] Please refer to Figure 4 , Which represents the power structure of the memory card according to a preferred embodiment of the present invention. The memory card 400 includes a control chip 410 and a flash memory 420. The control chip 410 is used to control the flash memory 420. The flash memory 420 is used to store data. The control chip 410 includes a voltage regulator 411, a core controller 412, a pin power supply device 413, and an output circuit 414. The memory card 400 receives the operating voltage V41 output by the host terminal for operation, for example, 3.3 or 1.8 volts. The working voltage V41 is output to the voltage regulator 411 through the pin P41, and output to the pin power device 413 through the pin P42. The voltage regulator 411 outputs the operating voltage V42 to the core controller 412 according to the operating voltage V41 and to the flash memory 420 through the pin P43 and the pin P44. The operating voltage V42 is, for example, 1.8 volts. The core co...
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A control chip capable of supporting supply of multiple voltages and a voltage supply method thereof. The control chip includes a voltage regulator, a pin power supply device, a core controller and an output circuit. The voltage regulator receives an external operating voltage and converts the external operating voltage to generate an operating voltage to the flash memory. The pin power supply device is used to receive an external working voltage, and output a pin working voltage after adjusting the level of the external working voltage according to an operation mode, and the pin power supply device provides the pin working voltage to multiple ports of the control chip foot. The core controller receives the working voltage for operation and generates a control signal. The output circuit is used to receive the control signal, and output a memory control signal according to the working voltage level of the pin, and the control chip controls the flash memory with the memory control signal.
Description
Technical field [0001] The present invention relates to a memory control chip supporting multiple voltage supply and a voltage supply method thereof, and particularly relates to a flash memory control chip supporting multiple voltage supply and a voltage supply method thereof. Background technique [0002] Because of the advantages of large capacity, small size and convenient portability, memory cards are now widely used. Whether it is backing up data on a computer, or in various portable electronic products, such as a personal digital assistant (PDA), digital camera, digital video camera for storing files, images, etc., it does bring a lot of convenience. [0003] Please refer to figure 1 , Which represents a well-known memory card power supply structure that supports a single operating voltage. The memory card 100 includes a control chip 110 and a flash memory (Flash memory) 120. The control chip 110 is used to control the operation of the flash memory 120. The flash memory 14...
Claims
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IPC IPC(8): G06F1/26G06K19/077
Inventor 江晋毅陈建志
Owner VIA TECH INC